Unlock instant, AI-driven research and patent intelligence for your innovation.

Shearing elevator

A technology of elevator and outer cylinder, applied in drilling equipment, earthwork drilling, drill pipe, etc., can solve the problems of high cost of shearing blowout preventers, inability to salvage them to resume drilling operations, and irregular shape of shearing openings.

Pending Publication Date: 2022-02-18
何炼
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to act on the outer cylinder and the inner cylinder to cut off the connecting pins between the outer cylinder and the inner cylinder through the force in the hydraulic chamber, so that the outer cylinder and the inner cylinder can be separated, and under the action of the connecting chain The drill string inside the inner cylinder is separated from the inner cylinder, so as to achieve the effect of shearing, which solves the problem that the traditional shearing BOP is expensive and requires a lot of time to operate. rules, when the hazard is over, it cannot be salvaged to resume drilling operations

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shearing elevator
  • Shearing elevator
  • Shearing elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1, such as Figure 1-3 As shown, the present invention provides a shear elevator technical solution: comprising a drill floor body 1, an outer cylinder 2 is fixed on the top of the drill floor body 1, and a sliding groove 15 is provided inside the outer cylinder 2, and the inside of the sliding groove 15 slides An inner cylinder 14 is connected, and a hydraulic cavity 16 is provided between the top of the inner cylinder 14 and the inner top surface of the sliding groove 15. The top of the inner cylinder 14 slides through the top of the outer cylinder 2 in the middle, and the outer cylinder 2 The surface and the outer surface of the inner cylinder 14 are provided with a plurality of positioning holes 11 near the top edge. Pins 12 are slidably connected in the holes 11 , and one ends of the multiple pins 12 extend to the interior of the multiple positioning holes 11 on the inner cylinder 14 correspondingly.

[0021] The effect achieved by the entire embodiment 1 ...

Embodiment 2

[0022] Example 2, such as Figure 1-3 As shown, the outer surface of the outer cylinder 2 is connected with a high-pressure butt joint 8, one end of the high-pressure butt joint 8 extends to the inside of the hydraulic chamber 16, and the outer surface of the high-pressure butt joint 8 is fitted with a sealing sleeve 9 near the edge of the other end. The outer surface of the cylinder 2 near the edge of the bottom is equidistantly fixed with a plurality of foot irons 5 along the circumferential direction. A connecting ring 3 is fixed on the top edge, and a fixed rope 4 is connected to the two connecting rings 3. One end of the two fixed ropes 4 is fixed on the top of the drill floor body 1, and the top of the outer cylinder 2 is fixed near the edges on both sides. There are lifting lugs 6, the outer surfaces of the two lifting lugs 6 are all wound with connecting chains 7, the top of the inner tube 14 is provided with grooves 13 near the edges of both sides, and the inner walls...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a shearing elevator and relates to the technical field of oil exploitation, the shearing elevator comprises a drill floor body, an outer cylinder is fixed to the top of the drill floor body, a sliding groove is formed in the outer cylinder, an inner cylinder is slidably connected into the sliding groove, and a hydraulic cavity is formed between the top of the inner cylinder and the inner top surface of the sliding groove, the top of the inner cylinder is located in the middle and penetrates to the top of the outer cylinder in a sliding mode.according to the invention, the acting force of the hydraulic cavity acts on the outer cylinder and the inner cylinder to cut off a connecting pin between the outer cylinder and the inner cylinder, so that the outer cylinder and the inner cylinder can be separated, and a drill column in the inner cylinder is separated from the inner cylinder under the action of a connecting chain, therefore, the shearing effect is achieved, and the problems that a traditional shearing blowout preventer is high in price and needs a large amount of time to operate, and after a dangerous case is finished, a drilling tool cannot be salvaged to recover drilling operation due to the fact that a shearing opening of the drilling tool is irregular in shape after shearing are solved.

Description

technical field [0001] The invention relates to the technical field of oil exploitation, in particular to a shear elevator. Background technique [0002] Oil is a fluid mineral buried deep in the ground. At first, people called the oily liquid minerals produced in nature petroleum, the combustible gas natural gas, and the solid combustible fuel minerals bitumen. Petroleum mining refers to the act of digging and extracting petroleum in places where petroleum is stored. In the process of oil extraction, oil and gas flow from the reservoir to the bottom of the well, and then rise from the bottom of the well to the wellhead. [0003] However, in the current drilling operations in the oil industry, when a blowout is out of control, the existing technology is to cut the drill string in the well from the wellhead position through the shear blowout preventer installed at the wellhead, let the cut drill string fall into the well, and then shut down The fully sealed ram BOP is used ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/06
CPCE21B19/06
Inventor 不公告发明人
Owner 何炼